A diagram of a circle with two intersecting lines. The circle is in the center of the image and is surrounded by a transparent background. On the left side of the circle, there are two arrows pointing towards the center, one pointing to the right and the other towards the left. The arrows are labeled "y" and "x" respectively, indicating that the circle is a tangent. The tangent of the tangent is marked with a red arrow, which is pointing towards a point at the center. The other arrow is labeled as "a" and is pointing to a point on the right side. The diagram appears to be a mathematical equation or equation that is used to calculate the angle of a given object.
User natalird uploaded the image
User natalird uploaded the image
